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C＃ excel net core读取xlsm
2022-07-13 18:07:00 【笨笨D幸福】
Net 读取Excel
别人的参考代码
//引用Microsoft.Office.Interop.Excel.dll文件
//添加using
using Microsoft.Office.Interop.Excel;
using Excel=Microsoft.Office.Interop.Excel;
//设置程序运行语言
System.Globalization.CultureInfo CurrentCI = System.Threading.Thread.CurrentThread.CurrentCulture;
System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
//创建Application
Excel.Application xlApp = new Excel.Application();
//设置是否显示警告窗体
excelApp.DisplayAlerts = false;
//设置是否显示Excel
excelApp.Visible = false;
//禁止刷新屏幕
excelApp.ScreenUpdating = false;
//根据路径path打开
Excel.Workbook xlsWorkBook = excelApp.Workbooks.Open(path, System.Type.Missing, System.Type.Missing, System.Type.Missing,
System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing,
System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
//获取Worksheet对象
Excel.Worksheet xlsWorkSheet = (Worksheet)xlsWorkBook.Worksheets["sales plan"];
***获取最后一行、一列的两种方法***
//获取已用的范围数据
int rowsCount = xlsWorkSheet.UsedRange.Rows.Count;
int colsCount = xlsWorkSheet.UsedRange.Columns.Count;
int rowsCount = xlsWorkSheet.get_Range("A65536", "A65536").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlUp).Row;
int colsCount = xlsWorkSheet.get_Range("ZZ1", "ZZ1").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlToLeft).Column;
***将Excel数据存入二维数组***
//rowsCount：最大行 colsCount：最大列
Microsoft.Office.Interop.Excel.Range c1 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[1, 1];
Microsoft.Office.Interop.Excel.Range c2 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[rowsCount, colsCount];
Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.get_Range(c1, c2);
object[,] exceldata = (object[,])rng.get_Value(Microsoft.Office.Interop.Excel.XlRangeValueDataType.xlRangeValueDefault);
//在第一列的左边插入一列
Excel.Range xlsColumns = (Excel.Range)xlsWorkSheet.Columns[1, System.Type.Missing];
xlsColumns.Insert(XlInsertShiftDirection.xlShiftToRight, Type.Missing);
//xlsSheetTemplateMajor_Meisai.Cells.get_Range(xlsSheetTemplateMajor_Meisai.Cells[1, 1], xlsSheetTemplateMajor_Meisai.Cells[65535, 1]).Insert(Type.Missing, Type.Missing);
Excel.Range rng;
rng = worksheet.get_Range("A:A", "A:A");
rng.Insert(Excel.XlDirection.xlToRight, Excel.XlInsertFormatOrigin.xlFormatFromLeftOrAbove);
Excel.Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Columns[12, Type.Missing];
rng.Insert(XlInsertShiftDirection.xlShiftToRight, XlInsertFormatOrigin.xlFormatFromLeftOrAbove);
//删除行
Range deleteRng = (Range)xlsWorkSheetSapExcel.Rows[2, System.Type.Missing];
deleteRng.Delete(Excel.XlDeleteShiftDirection.xlShiftUp);
//删除一列数据
((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1, 11]).Select();
((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1, 11]).EntireColumn.Delete(0);
((Excel.Range)xlsSheetShareMajor_Meisai.Cells[1, 3]).EntireColumn.Delete (0);
//设置背景色为红色
xlsWorkSheet.get_Range("A1", "A1").Interior.ColorIndex = 3;
//设置Format属性 属性值可以通过在vba中录宏得到
Microsoft.Office.Interop.Excel.Range range1 = xlsWorkSheetAdd.get_Range("J1", "J65535");
range1.NumberFormat = "@";//文本格式
range1 = xlsWorkSheetAdd.get_Range("L1", "L65535");
range1.NumberFormat = "0.00";//保留两位小数
Excel.Range rng = xlsSheetShareMajor_Meisai.Columns["I", System.Type.Missing] as Excel.Range;
rng.NumberFormatLocal [email protected]"yyyy/m/d";//设置日期格式
//替换
Range Drng = xlsWorkSheetTemplate.get_Range("D1", "D65535");
Drng.Replace(" ", "", XlLookAt.xlPart, XlSearchOrder.xlByColumns, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
Drng.TextToColumns(Drng, Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierSingleQuote, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
//分列处理 设置为文本
Range TextToColumnRng = xlsWorkSheet.get_Range("E1", "E65535");
xlsWorkSheet.get_Range("E1", "E65535").TextToColumns(TextToColumnRng, Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierSingleQuote, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
//设置公式
rng = xlMergeFileWorkSheet.get_Range("D2", "D" + rowcount);//设置列范围
rng.Formula = @"=IF(RC[-3]=""H"",""Survivor"",""Donor"")";//设置公式 @的问题
//rng.NumberFormat = "$0.00";//设置格式
copyRng = xlsSheetTemplateMajor_Meisai.get_Range("N3", "N" + lastRowTemplate);
copyRng.Formula = "=VLOOKUP(RC[-12],AR残!C[-13]:C[-11],2,0)";
//通过行、列的索引获取值
string f = Convert.ToString(xlsSheetShareMajor_Meisai.get_Range(xlsSheetShareMajor_Meisai.Cells[2, 1], xlsSheetShareMajor_Meisai.Cells[2,1]).Value2);
//筛选
//确定筛选范围
D1_rng = D1_TemSheet.Cells.get_Range(D1_TemSheet.Cells[1, 1], D1_TemSheet.Cells[1, 50]);
//执行筛选动作
rng.AutoFilter(5, "S", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlFilterValues, Type.Missing, true);
rng.AutoFilter(6, "H", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlOr, "F", true);
D1_rng.AutoFilter(D1_Column + 2, "#N/A", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlFilterValues,"#N/A",false);
//复制粘贴
D2_rng.Copy(Type.Missing);
D2_TemSheet.Cells.get_Range(D2_TemSheet.Cells[2, (D2_Column + 1)], D2_TemSheet.Cells[2, (D2_Column + 1)]).PasteSpecial(Excel.XlPasteType.xlPasteValues, Excel.XlPasteSpecialOperation.xlPasteSpecialOperationNone, false, false);
//Find查找
rng = mySheet.get_Range("A1", "IV10").Find(arrLabel[j], Type.Missing,
Microsoft.Office.Interop.Excel.XlFindLookIn.xlValues, Microsoft.Office.Interop.Excel.XlLookAt.xlWhole,
Microsoft.Office.Interop.Excel.XlSearchOrder.xlByRows,
Microsoft.Office.Interop.Excel.XlSearchDirection.xlNext, false, Type.Missing, Type.Missing);
//文字占满单元格
range.EntireColumn.AutoFit();
//另存
xlsWorkBook.SaveAs(FileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
***关闭对象***
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkSheet);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkBook);
excelApp.Quit();
Kill(excelApp);//调用方法关闭进程
GC.Collect();
/// <summary>
/// 关闭Excel进程
/// </summary>
public class KeyMyExcelProcess
{
[DllImport("User32.dll", CharSet = CharSet.Auto)]
public static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);
public static void Kill(Microsoft.Office.Interop.Excel.Application excel)
{
try
{
IntPtr t = new IntPtr(excel.Hwnd); //得到这个句柄，具体作用是得到这块内存入口
int k = 0;
GetWindowThreadProcessId(t, out k); //得到本进程唯一标志k
System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(k); //得到对进程k的引用
p.Kill(); //关闭进程k
}
catch (System.Exception ex)
{
throw ex;
}
}
}
//关闭打开的Excel方法
public void CloseExcel(Microsoft.Office.Interop.Excel.Application ExcelApplication, Microsoft.Office.Interop.Excel.Workbook ExcelWorkbook)
{
ExcelWorkbook.Close(false, Type.Missing, Type.Missing);
ExcelWorkbook = null;
ExcelApplication.Quit();
GC.Collect();
KeyMyExcelProcess.Kill(ExcelApplication);
}
自己的实现
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
/// <summary>
/// 参考文档
/// https://www.jb51.net/article/132309.htm
/// </summary>
namespace ExcelParser
{
// excel
using Microsoft.Office.Interop.Excel;
using System.Diagnostics;
using MsExcel = Microsoft.Office.Interop.Excel;
public class ExcelTool
{
public MsExcel.Application NewApp(bool visiable=false, bool alert=false)
{
MsExcel.Application xlApp = new MsExcel.Application();
//设置是否显示警告窗体
xlApp.DisplayAlerts = alert;
//设置是否显示Excel
xlApp.Visible = visiable;
//禁止刷新屏幕, 可以加速显示
//xlApp.ScreenUpdating = false;
return xlApp;
}
public MsExcel.Workbook OpenFile(ref MsExcel.Application app,string path)
{
return app.Workbooks.Open(path);
}
public void ExitApp(ref MsExcel.Application app)
{
// workbook 索引从1开始
for(int i = app.Workbooks.Count; i>0; i--) {
app.Workbooks.Item[i].Close(false); // don't save changes
}
app.Workbooks.Close();
app.Quit();
}
public void ForceKill(string processName="excel")
{
Process[] procs = Process.GetProcessesByName(processName);
foreach (var pro in procs)
{
pro.Kill();//没有更好的方法,只有杀掉进程
}
}
public void SaveAsXlsx(ref MsExcel.Workbook wb, string path)
{
var fmtPath = Path.GetFullPath(path);
wb.SaveAs2(fmtPath, MsExcel.XlFileFormat.xlOpenXMLWorkbook);
}
public void SaveAsXlsm(ref MsExcel.Workbook wb, string path)
{
var fmtPath = Path.GetFullPath(path);
wb.SaveAs2(fmtPath, MsExcel.XlFileFormat.xlOpenXMLWorkbookMacroEnabled);
}
public void RunExcelMacro(ref MsExcel.Application app, string macroName, object[] parameters, out object rtnValue)
{
// 根据参数组是否为空，准备参数组对象
object[] paraObjects;
if (parameters == null)
paraObjects = new object[] { macroName };
else
{
int paraLength = parameters.Length;
paraObjects = new object[paraLength + 1];
paraObjects[0] = macroName;
for (int i = 0; i < paraLength; i++)
paraObjects[i + 1] = parameters[i];
}
rtnValue = this.RunMacro(app, paraObjects);
}
private object RunMacro(object app, object[] oRunArgs)
{
object objRtn; // 声明一个返回对象
// 反射方式执行宏
objRtn = app.GetType().InvokeMember("Run", System.Reflection.BindingFlags.Default | System.Reflection.BindingFlags.InvokeMethod, null, app, oRunArgs);
return objRtn;
}
public void PrintDebug(ref MsExcel.Workbook wb)
{
Debug.WriteLine($"File format: {wb.FileFormat}, title: {wb.FullName}, VBA: {wb.HasVBProject}, app version: {wb.Application.Version} ");
Debug.WriteLine($"Book Title:{wb.FullName}, saved?:{wb.Saved}, wbs:{wb.Worksheets.Count}");
for(int i=0; i<wb.Worksheets.Count; i++)
{
Worksheet sheet = wb.Worksheets.Item[i+1];
var rg = sheet.UsedRange;
Debug.WriteLine($"Sheet {i+1} => title:{sheet.Name}, range:{rg.Row},{rg.Column},{rg.Rows.Count}x{rg.Columns.Count}");
}
}
public void ReadTest(ref MsExcel.Workbook wb)
{
for (int i = 1; i <= wb.Worksheets.Count; i++)
{
Worksheet sheet = wb.Worksheets.Item[i];
Debug.WriteLine($"Sheet {sheet.Name} values:");
var rg = sheet.UsedRange;
for (int j = 1; j <= rg.Rows.Count; j++)
{
Debug.Write($"{rg.Row+j-1} => ");
for (int k = 1; k <= rg.Columns.Count; k++)
{
Range cell = rg.Cells.Item[j, k];
dynamic val = 0;
string ty = "";
if (cell.Value2 == null)
{
// cell is blank
val = null;
ty = "null";
}
else if (cell.Value2 is string)
{
// cell is text
val = (string)cell.Value2;
ty = "text";
}
else if (cell.Value is double)
{
// cell is number;
val = (double)cell.Value;
ty = "number";
}
else if (cell.Value2 is double)
{
// cell is date
val = DateTime.Now;
ty = "date";
}
Debug.Write($"[{k-1+rg.Column}]={val}/{ty}, ");
}
Debug.WriteLine("");
}
}
}
}
}
使用代码：
private void btn_read_xlsm_Click(object sender, EventArgs e)
{
var app = msTool.NewApp();
var wb = msTool.OpenFile(ref app, xlsmPath);
msTool.PrintDebug(ref wb);
msTool.ReadTest(ref wb);
msTool.ExitApp(ref app);
}
private void button1_Click(object sender, EventArgs e)
{
msTool.ForceKill();
}
private void button2_Click(object sender, EventArgs e)
{
var app = msTool.NewApp(true);
var wb = msTool.OpenFile(ref app, xlsmPath);
msTool.PrintDebug(ref wb);
object retval = null;
msTool.RunExcelMacro(ref app, "Button2_Click", null, out retval);
msTool.ReadTest(ref wb);
msTool.ExitApp(ref app);
}
Demo Excel:
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